April 6 in history: First modern Olympic games, US enters WWI and more

From the first modern Olympic games to the launch of world's first communication satellite, we've got it all covered.

Let's dive in today's history!

 First modern Olympic games formally opened in Athens, Greece.

United States officially enters World War I.

MK Gandhi breaks the British Salt law in Dandi, India.

NASA launches world's first communication satellite Intelsat I.

Earthquake kills more than 300 near L'Aquila, Italy.